/*
 * Copyright 2023 OceanBase
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

export default function (value: string | null) {
  if (value === null) {
    return 'NULL';
  } else if (typeof value === 'undefined') {
    return 'DEFAULT';
  }
  /**
   * xx-xx-xx xx:xx:xx.0 -> xx-xx-xx xx:xx:xx
   */
  value = value.split('.')[0];
  return `to_date('${value}', 'YYYY-MM-DD HH24:MI:SS')`;
}
